A unique question .. keyboard steering + pedal set

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I know this is kinda stupid question.
My sim chassis is still 45 days away and I can't set my Bodnar FFB motor on my PC table* ( *can't drill hole on my PC table ). I am also still waiting for the Momo 330mm steering wheel as the steering adapter is for a real Momo. I have rigged H-Engineering pedals on temporary plywood with a wall as a stop. LOL. So I only have pedals for now. I am borrowing a real Recaro seat from a friend too next week...ha ha ha.

Question :
How do I mix controller/s, where steering is using keyboard but pedals using HE set ? Kinda too tempted to wait 45 days.

I tried many times, it is either I get to drive and must throttle with a keyboard too, or I throttle with HE pedals but cant steer as keyboard steering input doesn't work if HE pedal works.... LOL.